DoS with algorithms that use PBKDF2 due to unbounded PBES2 Count value

TRUNG BÌNH 5.3CVE-2023-6681 · GHSA-cw2r-4p82-qv79 · PYSEC-2024-104 · Công bố 12/02/2024 · cập nhật 05/11/2026

Tóm tắt nhanh

CVE-2023-6681 là lỗ hổng mức TRUNG BÌNH (CVSS 5.3) ảnh hưởng jwcrypto, jwcrypto (latchset).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.88%, cao hơn 59.3% các lỗ hổng khác.
Cách xử lý: cập nhật lên 1.5.1 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
jwcrypto PyPI	`< 1.5.1`	`1.5.1`
jwcrypto latchset	`< 1.5.1`	`1.5.1`

Mô tả

Impact

Denial of Service, Applications that allow the use of the PBKDF2 algorithm.

Patches

A patch is available that sets the maximum number of default rounds.

Workarounds

Applications that do not need to use PBKDF2 should simply specify the algorithms use and exclude it from the list. Applications that need to use the algorithm should upgrade to the new version that allows to set a maximum rounds number.

Acknowledgement

The issues was reported by Jingcheng Yang and Jianjun Chen from Sichuan University and Zhongguancun Lab

Mô tả của NVD

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.